Organogenesis
This is the week of embryonic development when the lungs begin to form
What is week 4?
These cells have hair-like structures that sweep mucus up the airways
What are ciliated epithelial cells?
This is the gas that we inhale to fuel our cells
What is oxygen?
This chronic condition causes inflamed airways and wheezing
What is asthma?
This system transports the oxygen the lungs provide to the body’s cells
What is the circulatory system?
The lungs bud from this embryonic structure
What is the foregut endoderm?
These cells produce mucus in the respiratory tract
What are goblet cells?
This is the gas we exhale as a waste product of cellular respiration
What is carbon dioxide?
This lung disease damages the alveoli, often due to smoking
What is emphysema?
This system depends on the lungs to eliminate carbon dioxide waste
What is the respiratory system?
This process allows the lungs to grow and divide into bronchi and bronchioles
What is branching morphogenesis?
These cells in the alveoli allow gases to pass in and out of the bloodstream
What are type I alveolar cells (pneumocytes)?
This is the structure where oxygen enters the bloodstream
What are the alveoli?
This non-invasive test helps detect inflammation in asthma patients
What is FeNO testing?
This system relies on oxygen from the lungs to send signals throughout the body
What is the nervous system?
This fluid fills the fetal lungs before birth
What is amniotic fluid?
This type of epithelial tissue lines much of the respiratory tract
What is pseudostratified columnar epithelium?
Together, these two processes make up external respiration
What are inhalation and exhalation?
This type of immune cell–driven inflammation is common in COPD
What is neutrophilic inflammation?
These two systems work together to produce sound and speech
What are the respiratory and muscular systems?
This substance helps alveoli stay open and is produced late in fetal lung development
What is surfactant?
This muscle is responsible for most of the work during breathing
What is the diaphragm?
This part of the brain controls your rate of breathing
What is the medulla oblongata?
This overlapping condition includes features of both asthma and COPD
What is Asthma-COPD Overlap (ACO)?
This is why the muscular system depends on the respiratory system for movement
What is because muscles need oxygen for cellular respiration to make energy (ATP)?